"If you were living there, maybe it was starting to feel like your home at that point?" Ithuriel asks, "Or maybe you're just a good person and cared about people being treated poorly? Everything I've seen suggests you're a good sort." It's perhaps a little foolishly optimistic of her to perceive things that way, but then she is an angel of redemption. She's meant to try and draw out the good in people.
Sometimes she even manages it.